Water-purifying apparatus.



' H.'B. HA'RTMAN. WATER PURlFYlNG AEP/RATUS.

AFPLiCATlON FIL-ED JUNE H, 19214.

Patented lLemy` 18,1915.

. I INVENTOR wrrNEssEs ATTORNEY and forming a STERILIZER COMPANY, SYLVAIN' IA.

.tranny B. HARTMAN; or scoTrnALE, PENNSYLVANIA, AssreNon To ELECTRIC WATER Specification of Letters Patent.

0F SCOTTDALE, PENNSYLVANIA, A CORPORATION 0F PENN- WATER-PURIFYING APPARATUS.

Patented May 18, 1915.

Original application filed August 12, 1913, Serial Nbr 784,300. Dividedandthi's application filed .Tune 11,

1914. Serial No. 844,403.

To all whom it may concern.'

Be it known that I, HARRY B. HARTMAN, a citizen of the United vStates of America, residing in Scottdale, moreland,` in the State of Pennsylvania,

vhave invented certain new and useful Im.

provements in Water-Purifying Apparatus,

in the county of Westg of which the following is a true and exactv description, reference being had to the accompanying drawings, which'form a partv thereof. l

My present invention consists in improved apparatus for purifying water in accordance with' the general plan heretofore known, of first subjecting theO Water to electrolytic action and thereafter separating out of the water precipitated orjsuspended impurities.

The object of the invention is to provide simple and effective means for insuring a proper deposit on the filter bed of the`coagulum resulting fromvthe clectrolytic action on the raw water. This I accomplish by the means which I employ for insuring a quiet How into and out of the coagulating chamber employed, and the relative arrangements of the water inlet and outlet from said chamber.`

The various features of novelty which characterize my invention are pointed out with particularity in the claims' annexed to part of this specification.

For a better understanding of the invention, however and of the advantages possessed by it, reference vshould be had to the accompanying drawings and descriptive matter in which I have illustrated and described a preferred form of apparatus embodying the invention.

Of the drawings: Figure 1 is a somewhat diagrammatic representation, with parts broken away and in section, of a portion of a water purifying plant embodying the present invention; .and Fig. 2 is an elevation,

Apartly in section, on the line'2-2 of Fig. 1.

-slotted end portion D2 -formed with perforatlons F2 'In the portion of the particular form of' water purifying plant with which the'invention claimed herein isshown as employed in Fig. 1, A represents the raw water supply pipe leadin to the electrode box C and controlled by t e electrically operated valve B. The electrode box C in which the water is subjectedto electrolytic action may Well be, and is shown as being, of the same general the" service pipe LB. tons'and valves already referred to, andl construction as the electrode box disclosed and claimed in my prior Patent N o. 1,065,361, granted June 24, 1913. Advantageously, though gization of the electrode box and of the magnet Bby which the normally closed valve B is held open7 is automatically brought about when, and only when, water is jflowing through the plant, but no means for accomplishing in. From the outlet of the electrode box C the water passes through the branch As shown, the pipe D terminates in a chamber E at the upper end of the latter, and the slots in ythe end portion D2 are so arranged as to insure a quiet and distributed flow of water into the upper end of the chamber E. From the chamber E the water passes through the pipe F, which, as'shown, comprises a vertical portion passing through the top wall of the chamber E and extending down into the latter to a point adjacent but some distance above the lower end of the latter. "Ihe lower end of this portion of the pipe F is closed by cap F, and the pipe is adjacent the cap which .insure a quiet and distributed iiow of water from the lower portion of the coagulation chamber E into the pipe F. The pipe F in the construction shown is connected to the top 'of a small chamber FA, which in normal operation may forming nothing more than a portion of the pipe F, but may receive chemical 'matter when the sand orgranular vmaterial filters J and JA are being cleaned from time to time. F3 represents an' opening in the pipe F provided to limit the accumulation of air or gas m the coagulation chamber.

In normal operation, the water leaving the coagulation chamber E through the pipe F and chamber FA, is passed to the tcp of the filter J through the four-way valve H and pipe I, and after passingthrough the filter J is passed by the valve HA,I pipe H10, four-way valve'H,.and pipe LA to the top of the llter JA, and leaves the lower end of the latter through With the pipe connecthe valved wasteconnection H20 to the pipe H1", it is possible to cut either of the filters not necessarily, the ener-l pipe D and the pipe D to the coagulation chamber located within the this resultare illustrated herebe regarded as pipe L, three-way J and JA out of service, at will, or to obtain a reverse flow through either for cleaning purposes; but, as already explained, the water normally flows first through the filter il' and then through the filter JA. The i'ilters J and Jil may well be similar in construction and ot the usual type of granular filters employed in water purification plants' of this general type,

The water purifying plant, shown in part in Fig. l, is illustrated and described in detail in my prior application, Serial No. 784,360, tiled August 12th, 1913, ot" which the present application is a division. In view ot this tact, and the further fact that'an adequate understanding of the invention claimed herein does not require a `full lniowln edge of the details of the plant with which the invention may be used, further description herein orn the apparatus shown by the drawings appears to be unnecessary.

The electrolytic action to which the raw Awater is subjected in passing through the electrode boX C results in the forma-tion of coagulum, and the etliciency of the purifying plant depends largely on the quiet and uniform manner in which coagulum is pern mitted 'to 'form in the chamber E, and is withdrr rn from the latter and deposited at the top of the filter d in proportion to the rate et liow of the water being puriiied. The provisions even flow o1 water into the upper end of the coagulating chamber E and the quiet and distributed flow out of the latter from a Copies of 'this patent :may be obtained for trolytic action to made for insuring a quiet and Lieemo end of tiiepipe F in a period of non-use as long as twelve hours or so. ln consequence the coagulum will begin to flow out ot the chamber E along with the water, at once when water is first drawn :trom the system after any period of` non-use to which such appara-tus will ordinarily be Subj ect.

l'lavingnow described my invention, what l claim as new and desire to secure by Let ters Fatent, is:

In a water purifying system, the cembination withmeans for electrolyzing the water treated, of a ilter bed, a coagulation chamber, ineens for introducing the electrolyzed water into the upper end of said chamber, means for withdrawing water :troni said chamber at a level or levels adjacent but somewhat above its lower end, whereby coagulum resulting from the elecwhich the water is subjected may be continuously admixed with water intermittently withdrawn from said chamber, notwithstanding the tendency oi said coagulum to slowly settle to the bottom et said chamber, and means t'or passing the withdrawn water to said iilter bed.

2. ln a. `rater purifying system, the coin bination with means for electrolyzing the water treated, of a filter bed, a coagulation chamber, means for introducing the eletrolysed water in distributed streams into the upper end of said chamber and means for lwithdrawing water from said chamber in distributed streams at a level or levels adjacent but somewhat above its lower end whereby coagulum resulting from the electrolytic action to which the water is subjectedmay be continuously admixed with water intermittently withdrawn from said chamber, not-withstanding the tendency of said coagulum to slowly settle to the bottom of said chamber, and means for passing the withdrawn water to the filter bed.

W. S. YVILEY, NAT. E., SCHOTT.

ve cents each, by addressing the Commissioner of Patents,

Washington, D. C. 

